Resilient wheel



Aug. 14,1923. www

V V. GIL-DELGADO RESILIENT WHEEL Filed March 51; 1921 4 sheets-sheet 1Ang. 14, 1923. m4651125 V. GIL-DELGADO RES ILIENT WHEEL Filed March :51.1921 4 sheets-sheet 2 Figi 4 Sheets-Sheet' 5 V. GILDELGADO RESILIENTWHEEL Filed March Aug. 14, 1923.

Filed March 3l. 1921 4 Sheets-Shea?l 4 Fig. 4 we" Y y ments ot' thePatented lstig. ld, i923.

VICENTE GIL-DELGADC, F EIDRID, SFAIN.

nnsrrirnnr Wanna.

Application ined Marcil si, i921. i serial no. 457,275.

To all 'wlwm 'it may] concern:

'Be it known that VIGENTE GiL-niioimo,4

subject of the lingoilpain, residing at lvl'adrid, 26 Calle de Serrano,Spain, has invented certainnew and Useful inprovements, in ResilientWheels, of which the following is a specilication7` reference being hadthere! Yin to the accompanying drawingrl This invention relates to animprovement 10 Vota resilient vehicle wheel.

According to the presentin'vention the resilient cushiony is mounteddirectly on the periphery or the central or hub portionor' the wheel'andVbears on the'inner periphery of a box shaped intermediate rim the sidesof' which are constituted the two Vside plates connected to the outerrimLthe hub portion7 resilient cushion, lying all substantially in theplane ofthe wheel. v- Y Another feature of the present inventionconsistsin the provision, in a wheel of the kind in question of meanswhereby the outer rim V,can makeaxial displacements inV both directionsrelatively to the intermediate rim,

this means being thusqnite independentot the in'eans "tor permittingVVeccentric moveaxle relatively to the periphery of the wheel. Y Theinvention also comprises various other :features hereinafter describedand pointed l ont in the claims, and which are here briefly referred toas means 'tor rendering the enter 4rim or tread renewable, frictionboxes` in Figures`2 and 4t are also sections on the line 2-2` and 4.-4of Figures l and the line of the section beingfirregul'ar so that theYcomponents Vof the central parte of the wheels may bebetterappreciated.V A

The Wheel comprisestwoV systems oit' parts.

and outer rim` slotsl in the hub portion, andside'plates a comprisesresilientrings 14, 18 of rectanguto the axle.

"lhe first o' the systems referred to coinprises a central or hubportion l provided with four slotsl on two perpendicular 6o diametersanda rim 2 in which a small solid Vrubber cushion 3 is lodged, which issuliicient in the wheels according to this invention to yield aresiliency equivalent' to that oit wheels with pneumatic tyres. Fourcircular equidistant holes 3 are formed in the Ahiibportion. In the hubproper are placed ball-bearings 8 which are` held in position by anouter nut 9 and an' inner nut 8, screwed on 'to the hub portion. 70

rlfhe intermediate rim is Jformed of two stamped plates 2, provided withstiiiening rings 5, 30, 33 and 34 riveted to the same at places wheregreater strength is required. The said plates are each provided withtour slots d on twov perpendicular diameters.

lf our bars l the ends ot which are smaller than the middle portion aremounted each with its middle portion engaging one of the iioiir slots inthe part l. arid its ends in the c-f'i'rresponding slotsV iii-the plates2.

lilight tlv-shaped )friction boxes or wear receiving elements areprovided in the Vslots o'lieach ot the plates 2, two being associated.with each the slots in the plate9 and eight boxes ojl similar t'orm butdifferent dimensions are tted into the slots of the hub portion l.two'associated with each slot. `The liour .liars lA areA made to slidertreely within the interchangeable friction boxes relierred to.

A ring 34 ot.' angular section is riveted at fllby its side flange to`the internal tace olE one ot the plates 2 and the` end' of thepel'ilrheral wart ot the on the @das 9 oit a ring- .-s? parallel to a.flange oi: the ring lelpthe. ring 33 being riveted to the opposite plate2.

The second oit` the systems referred to l0() lar section which lodgebetween extensions ot the plates 2 forming the intermediate riin to.which the spokes are attached, and flanges 16, 13, the former of whichforms the sido .oit an lfshaped ring'.v The flanges 1G. 13 are 105 Q Y Y1,4e5,125

held in place with the aid of rivets 35 riveted at both ends andarranged betneen the spokes and passing through the flanges'. The inner:tace ot the horizontal portion oit ring l@ and the outer tace ot ringSi have a sliding and guided interlit through the provision of alternateinteriitting projections l5, part on the ring 1G and part on the ring34.

'l he outer doivels of the Wheel spokes l2 are fitted into the externalrioi 20, and the inner doivels Vinto the intern'iediate rim which issti'ffened by the rings i6 and i3. L hoop 22 is shrunk on the rire. 2Oand a. solid tire 2e ot ordinary type with a grooved litting attachment23 is pressedI` on the rim 22 and secured in place by tvo rings 21 oidouble angular section attai'lued to the lateral faces el? the rim ZO bybolts 'L9 and nuts and split pins.

"lheveonnection oit the two wheel portions described is eiliected byineens oi' tour bolts 25 which pass through the centre ot the holes 3which are drilled ecridlistantly in the hub portion l. rflic bolts areoval in shape and hold 'the wheel hub intoriorly by bind ing thestii'iiening rings 5 lodged in circuniferential grooves in the sideplates f2. rEhe inner Walls oi? these grooif'es are in Contact with andguide the 1 art l and spring pressure Washer 25 is provided on eachbolt. There are also provided bolts il. which pass through the plates 2at that part ot the latter which projects beyond the ring and throughthe tvso rubber washers 'lV-l and i8, the stiffening rings i3 and l@ andthrough the centres ol: the doivels of the spokes l2, 32 is anenlargement oit the cuter plate Q, 'forming a hub cover. i

The driving` elti'ort troni the motor to the Wheel is transmittedthrough the cardan system to the aftle C and the hub of the hub portioni by means oi l-:eys4 or by means ot a squared or hexagonal portion onthe axle or in any lnoivn suitable manner.

The Whed brakes are fitted in the usual Way*7 the lnal elrum 35 (Figurell) tor instance, being;` tired to a turned over edge oft the huboortion by bolts and nuts.

rllhe lubrication ot the tivo systems which is acroniplished bynieans'o't a special lubricant to which rubber is impervious, is et?iiected by ineans ot an oilfcup or lubricator 28S, Fig. (i, which passesthrounjh the exterior plate 2 oi" the Wheel and tho rin` iltlhen thelubricant is'rponred into this cup it ,tails into the casing YFormed bythe tivo plates 2, 'the rino di, the hubaover 2'?, and the niudguardsif' it cannot escape iiroin the Wheel 7 l because the latter is providedwith a Washer jjoint 27 placed between the base o l the hubbe point i valeather quadrangular washer 26, place-iron the mud-guard 7 in a grooveprovided in cover @and the outer plate Q l:

Vtivo plates 2 at the point oit their terence, because theinterinediaterun, in-v this piece and which engages by friction the outer tace or theplate 2 on the inner side oi the Wheel; this description applies to theliront Wheels ot a vehicle, and With respect to the driving `Wheels tioarrangement is '*ailar except as regards the quadrangular washer :26referred to7 which engaging the said plate 2 by friction in the saineWay, is nevertheless, iitted in a groove provided on the :tace or thebra re-druni which bears upon the said plate 2, as shown in Fig. il. Thering 3ft is provided with several holes drilled in the partl whichcoincides with the Washers 'lil and i8, through which the lubricantpasses from the interior to 'that part which constitutes the secondsystem described, thus easing the movement ot the lzeys lo,` its escapebeing prevented byl the previously described Washers lef and 18 whichare initially ot greater width than the space they occupy` and whichWhilst providl ing lateral elasticity, Vserve also as a joint ttor thepieres to which es explained they are iitted. Lillie lubrication ot bothsystems is therefore eilected lthroiiigh the saine aperture 28, tronithe Voutside oiithe Wheel, and without itsv being necessary to disniountany oi the pieces, which are thus lubricated by acont-inuous oil-bath"during the revolu tions ot the wheel.. f Y

rihe action oi the wheel mechanism in absorbing lateral strain will nowbe described. ln the wheel o'lf my prior specification no provision wasinode 'for absorbing the saine. Since there exist, however, strainswhich opte in one sense or 'the other end exercise "l eiiorts upon theWheels', more especially when rounding curves or during sharp turns7Yforcing the wheels to resist Ycentriitugal Ytorce which tends todellect Vthe course oi the vehicle, it is necessar; provide means whichabsorb the said etlfects, so as to increase the resisting power oi thewheel and ot the road-tyresi Y ln the description ot Vthe pieces whichcompose the wheel, it will be noticed. that they torni, in their inanneroi" itting together 'two completely distinct partsor sections the iii-stconiprisiig` the tread or road tyre7 coupling rings and scren's forlining the saine, a. hoop, outer rino and spokes,V

ingI the wheel.` irlsothe first olfl the parteV named is tree to movelate ally between the circ-unicluding its stitleninfrrings, is narrowerin width than the d' Se between the two plates7 and neither thescrews ilwhich pass through it, nor the keys l5 which vare'rivoted to thestiffening rings, prevent this inovenient, being narrower thanY thedislli) be seenV that the action of the Lance between the stiieningpieces, nor the t-Wo rubber' Washers 14: and 18 which are also traversedby the screwsA l1'. lt will thus parts is sini'ple.V It the'Y periphery'can inove laterally, itis obvious that on lateral stress occurring, the

second part above mentioned will remain fixed, and the periphery orfirst part will deviate either to left or right according to the ldirection of the strain, this being absorbed by the tWo Washers lli and18, according to the direction ot the strain, checked by the screwsll,this effect being broueht about by the lateral sliding of the keys lo.The keys 15 and the screws l1 prevent loss oi' tractional efort'andbrake action.

and Ll, the upper part of each one ot' the spokes is `lodged in a pieceof tubular .torin, the base or seatine' 23 of which is iitted exteiiorl1 to h the rim 22, ,constituting mechanically a clamp. These clamps arefastened to the `lrinfi 22 by means of rivets, in Whichcase they arepermanently Xed to the rini or by means of bolts 19 running through therirn and the elainp referred to. This latter inetliod permits of Vtheriin 22 and tyre 24; being Vchanged for another rim and tyre.

' By unscrewing the nuts of the bolts referred'to, the riin and tyreVare thus freed ifi-ointhewlieel, and by sliding each c-lanip down itscorresponding spoke, the rini and tyre can be separated. By placinganother riin andtyre in the position vacated by that removed, thensliding up the clanips until they touch the Wheel rini, the nuts merelyhave t0 be screwed onto their screwsy in or;V vder vto complete thechange.

The. pressure of the solid tyre 2lon the rini V22 keeps the screws withtlieiiyseuiispherical heads Vin their places in the said Y riin,'whetherthe latter be'niounted OD. the

Vand Vprojections Wheel or not. The/tubular steel spokes l ave theirlower or inner ends Vlodged in tivo Vequal undulated rings'lti and iff,the lower seatings oi Ywhich are rire-ted to a ring The circumferentialA part otrtlievplates 2 Which projects beyond the ring 341-, isalso'undulated in forni these undulations correspond to those of t iepieces 13 and '16. The ring 3G niay bec-ast as to forni a single piecewith one ofthe rings 13 011:16, but in the; same shape as n described.-

lVlieels built with tubular suokes possess also the advantagethatalltheir pieces can be pressed or stamped out, although theyl ina alsobe of cast inetal. and `Jiovided also with an ordinary type ot' riniwith double flanges 22, "the tyre, 24: requiring `no strengthening. Theshape shown in the drawing (see Figure el), can thus be adoptethhttedwith canvas V.onlyfin the parts whichV engage with the flanges,orprovided throughout its section or a part ol the saine, with canvasvulcanized to the rubber, or with chronic-finished leathercorrespondingly riveted.

In other details, these steel wheels do not diiler essentially fromthose constructed ot Wood, as considered in the description preceding.VThe keys l5 may also be substituted in both constructions by undulationseffected in the ring` 36, which correspond with others of. small sizestainped in the ring 34, and in Wheels with wooden spokes in the ringelrrnentioned and in the strap 16. For the better understanding of thisin vention, tivo sectional elevations ot each type of wheel are shown.in Figures l and 8, the external plate 2 and the hub cover 32 are seenin section, so that the details of the internal pieces of the wheel hubor central I u u y n 7 l, resilient cushion 5 and triction lQOXes6,'Wli1c-h are lodged in the sides or the slots of the hub portion,those of the plate on the other side of the Wheel being :indicated bydotted lines, as Well as the slot oi this latter` plate where theopposite end of the bar l is lodged. Y Y

Although the sets of slots are 'tour in number as described,betweentliein torining a cross,'each of the bars a correspondingl toeach of the four sets of slots, each set cousisting of tivo slots, onein each plate and another one of those provided in the hub portion, thefour latter have not been slioun in order that the slots in the hubportion may also be seen without the tivo friction boxes or' theopposite plate 2. and so that the structure of the external plate 2, thehub cover 32and all the screws which hold `the nucleus together niay beexamined.

Since the Ahrst systein is distinct troni thc second, as has been madeclear in the dei scription, it. is evidentV that gravitational andlateral strains are controlled independently.

The perfection oi? both systein,`their independence and the elasticityol the traetive effort, the fact that the parts coinposi the wheelinay'all be inside of stamped metal, and the additional strengthobtained in the sanie by the adoption of U, T, and double T-shapedvsteelplates and the ilact o' there being no pneuniz tyre, produce the inanyadvantages.

Hai 'icularly doser' and invention to lie per-

